| @ open university - Search X Week 15: Practice quiz (page 2 0 x @ light reflection calculator - Search x O' Snell's Law Calculator * *Course Hero * + X Cn https://learn2.open.ac.uk/mod/quiz/attempt.php?attempt=$513395&cmid=1906338&page=1 Not syncing ... T193-22D Home > Week 15 > Week 15: Practice quiz - WEEK 15 Surface engineering and additive manufacturing Week 15: additional resources Week 15: Practice quiz Questions 5 6 Question 2 Tries remaining: 3 Marked out of 1.00 \\ Flag question 8 The dispersive power of a material can be calculated for electromagnetic radiation of two wavelengths 1 and 2 as D = 71 - n2 Finish attempt ... n - 1 Where nj is the refractive index of the material for wavelength 1, n2 is the refractive index of the material for wavelength 2, and n is the mean of nj and n2. The refractive index of quartz was found to be n1 = 1.47 at wavelength 400 nm and n2 = 1.456 at wavelength 700 nm. Calculate the dispersive power of quartz over this range. Give your answer in scientific notation to 3 significant figures. (To input 1.2 x 10 you put 1.2 * 10 ^ -3 in the box. Other formats will be accepted if correct, but scientific notation is preferred.) Dispersive power: Check Send feedback Type here to search O w ox 15:56 15 C Cloudy ~ 2 ) 22/06/2022